In the experimental phase, image with watermark has been attacked in several ways, such as cropping, scaling, noise, JPEG compression and tampering.
在实验阶段，对嵌有水印的图像进行了剪切、缩放、噪声干扰、JPEG压缩和篡改等攻击实验。
Being a primary phase of face recognition, vision point tracing, and face image compression etc., inspecting human face out from the image background is the very first step.
作为人脸识别的重要的第一步，人脸检测所做的工作是将人脸从图像背景中检测出来，它是人脸识别、视点跟踪和人脸图像压缩等应用中的重要环节。
The popular lossy-JPEG image compression arithmetic and phase-shifting technology are introduced.
简介了当今流行的JPEG有损压缩技术和相移技术。
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